Seal



July 3, 1928. 1,675,328

B. BoRLAND SEAL Fled llarch l?. 1927 ZM/MQW@ Patented July 3, 19128.

UNITED STATES BRUCE Bomann, or cineasti,-innnaois,`

SEAL.

Application filed March i?, 19a?. `serial Np. 176,030.

I have heretofore.manufactured `and sold fItfwiIl be understood thatthese seals are car seals made of metallic strips havinfr holes punchedin one end and integrally formed buttons or projections at theoppositeends which are passed through the holes and then headed orriveted over by means of a seal press. The buttons or projections aremade approximately cylindrical for a shortdistance with curved orapproximately heini spherical tops or ends. It has been found that inusin these devices, occasionally the flat end witi the hole therethroughis not fully pressed down over the button or projection, so that insteadof the button being riveted over the adjacent surface of the `coactingend, the button will befiattened down with only a portion thereofprojecting into the hole, and the ends may be more or less readilyseparated so that the device isnot properly sealed. In order to overcomesuch possible improper sealing of these devices, I have provided thenovel construction forining the subject matter of this application. Inaccordance with the present invention, I provide a seal having the endsso constructed that the sealing or locking portions will be brou ht intoproper position before any riveting action takes place.

The objects of this invention are to provide an improved seal which willbe particularly cheap in construction and which is provided withfastening means whereby a proper locking or sealing is insured; toprovide a seal having a locking button at one end and a concave ordepressed portion at the other end with a hole there for receiving thebutton; to provide a seal of the character indicated having 'meanswhereby the ends will be pressed together before the rivet is spread tofasten the ends; and to provide such further advantages and novelfeatures of construction as will appear more fully hereinafter.

In the accompanying drawings illustrating this invention,

Figure 1 is a side view of my improved seal;

Figure 2 is a plan view of the same;

Figure 3 is an enlarged sectional detail showing the ends in position inthe press preparatory to fastening;

Figure 4 is a view similar to Figure 3 showing the parts afterthe pressis partly closed; and

Fi ure 5 is a similar view showing the comp eted rivet or fastening.

made of very thin metal, such as sheet steel en tin, the commercial formbeing approximately three-eighths ofv an inch wide, and the views shownin the drawings are necessarily enlarged for convenience in illustration. The seal comprises'. `a metallic strip 6 having a button orprojection 7 atonc end thereof which is preferably formed integrally. Inthe preferred construction, this projection is made cylindrical for ashort distance from the strip, and the closed end 8 is rounded orhemispherical, as shown ar ticularly in Figure 3. The opposite en of thestrip has a concave or approximately conical pi'otuberance or hump 9having a hole l0 therethrough which is adapted to fit closely over thebutton 7. Vhen the parts are brought together to fastening position, asshown in Figure 3, the protuberance eX- tends vdownwardly so that itslower edge 11 which forms the periphery 0f the hole 10 extends beyondthe rounded upper portion of the button or rivet 7 It will be seen thatif the user fails to press the ends together when they are placedbetween the jaws 12 and 13 of theseal press, the jaws will first forcethe ends to this position. As the jaws close or are pressed together,the protruding or bulging portion 9 will be forced toward the oppositeend so that when the riveting action commences, as shown in Figure 4,the lower edge 11 will be pressed to the base of the cylindrical portionand into I engagement with the opposite face of the adjacent end of theseal. The continued closing of the jaws causes the end of the projectionor button 7 to be formed into a head 14, as shown in Figure 5, whichprojects out over the surface of the opposite end around the hole 10; Atthe same time, the crushing or pressing down of the protuberance 9causes the edge 11 to be pressed inwardly against the button around theentire periphery thereof, which further increases the positive fasteningof the ends together,

Onaccount of this novel construction, the action of the` jaws will forcethe ends into proper position for sealing so that it is prac` ticallyimpossible to make an improper fastening or seal.

Having thus described my invention, what I claim and desire to secure byLetters Patent is: A

1. A seal of the character set forth, com `prising a thin strip of metalhaving an ina stud at one end and having a depression .spaced therefromand facing the stud, said depression havin a hole to receive the studand being of su cient depth relative to the stud so that roperpositioning of the depression will eV insured when compression takesplace to cause the stud to spread over i the depression and thedepression flattened.

3. A seal comprising a strip of metal with abutton at one end and adepression at the other end having a hole in the bottom thereof, theperiphery of which rests against the outer surface of the buttonadjacent to the strip when in engaging'position, said depressionprojecting from the surface of thelstrip a sufficient distance to causespreadinv' of the stud above the hote instead of belowl the same.

. BRUCE BORLAND.

periphery of the

